Spotlight lamp



Patented Sept. 15, 1925.

UNITED STATES PATENT OFFICE.

HENRY' H. IOBETON, OF SAN LIGHT COMPANY, A CORPORATION 0l' CALIFORNIA.

Be it known that SPOTLIGHT LAMP.

I, HENRY H. MoRE'roN,

a citizen of the United States, residing at Santa Monica,

in the county of Los Angles and State of California, have invented a new and useful Spotlig following is a specification.

a new beam of light projected This invention 1s for controlling the by a spotlight lamp,

monly employed on ht Lamp, of which the and useful device of the character oommotor vehicles.

One of the objects of the invention is to provide means for spot light lamp, in

pvotally supporting. a such manner that 1ts beams may be projected forwardly, to any part of the road in advance of the vehicles to which it is attached, or may be directed laterally, posts, street for the convenient reading of sign numbers and the like.

A further object 1s to provide a simplle form of control device means of which the turned oft1 while the in the circuit to t e lamp, by light is automatically lamp is being moved through a predetermined portion'of the arc of its pivotal rected straight said beam from of the driver of an approaching vehicle.

movement, with the beam diahead, thereby preventing being projected into the eyes A et 18, is provided with an annular'groove further object 1s to provide a control device of the character mentioned, so constructe that it will be unaffected by movement of the lamp, when the beam is directed laterallyof the vehicle. means whereby the 1n the movement of light will be shut The invention A further object is to provide position of the control device maybe adjusted, to vary the point the lamp, at which the oi. e will be hereinafter fully set forth and particularly pointed out in the claims.

In the accompanying drawings Figure 1 is a top plan view illustrating a spot light with the invention. elevation. Figure 3 line 3-3 looking to cross section on the ing to the right.

lamp constructed in accordance Figure 2 is a front is a cross section on the the left. Figure 4 is a line 3-3 Figure 1, look- Figure 5 is a detail sectional view illustrating the control device.

d for the split socket 18,

. rod, and

bers of the clamp 10, is one end of a support member 14, said end having flat faces complemental to the inner faces of the clamp members, and havingv an opening for the passage of the bolt 12. The free end of thev su port member is provided with a socket 15. otatably mounted in the socket 15 is a carrier member 16 threaded at one end to receive a nut 17, the other end being provided with a split socket 18, arranged on an axis at right angles the socket 15. Rotatably mounted in the socket 18, is oneend of a lamp carrier rod 19, the other end of which is rovided with a clamp collar 20, which encirc es and clamps the spot light lamp 21, which may be of any preferred construction. 'The portion of the lamp carrier r'od 19 which is within the sock- 22, which is engaged by the clamp screw 23, 'whereby saidrod 19 is free to rotate but is held against withdrawal.

Mounted on the lamp carrier rod 19 is a supporting device 24:, which consists of two clamp members a and b, having portions 25 curved kto closely-embrace the amp carrier having similar portions .26 toreceive and clamp switch casing 27 Said members a and b are held in clamping position by means of a screw 28. saidfscrew 28, the portions 25 are 'made to closely embrace the lamp carrier rod 19, and the curved portions 26 will similarly clamp and hold the casing 27.

Located in the switch casing 27 is a switch of any preferred construction. As shown in the drawing, the same consists of a support block 29 of insulating material, provlded with a stationary contact 30, and a movable TA MONICA, CALIFORNIA, ASSIGNOB TOVNATIONALBPOT shaped to engage any dev By tightening contact 31. The latter is normally held in engagement with the stationary contact b means of a suitable spring 32. The circuit Awires 33 are connected to the respective contacts in a Well-known manner. Themovable contact is provided with an actuator 34, which projects through the end of the casing 27 1n a position to engage a cam 35, formed on the contiguous portion of the support member 14.

In practice thefclamp 10 is secured t0 the windshield frame, or other suitable part of the vehicle, the reflector casing 21 being free to swing horizontally upon the rod 19, and to swing laterally upon the carrier member 16. As the casing 21 swings upon the rod 19 in a direction tending to elevate the beam emanating vfrom the lamp, during any time that the beam is projected' forv wardly, the actuator 34 will engage the cam 35, and as movement ofthe casing continues,

' vehicle, the light is shut off and the circuit to the lamp will be broken by disengagement of the cont-act members, in a manner which will be obvious from the drawings. During'v this period the current will be shutoff from the lamp and -nolight will be projected therefrom. Thus'as the casingis moved to a point tending to elevate j -the beam sufficiently high to direct it into the eyes of the driver of an approaching is not subjected to the objectionable glare. However, as pivotal movement of the casing is continued, and it reaches 'a plane above `that of the eyes of the driver of the approaching vehicle, the actuator will have passed the cam and the lamp is again however, the

will not interfere with the operation of other vehicles. In otherwords, there is a certain portion of the arc of movement of the lam during which the light is entirely shut o By loosening the clamp screw 2 8, the switch casing 27 may be rotated to vary the point during'the pivotal movement of the lamp,

' at which theactuator will'engage the cam.

This adjustment is permitted by reasonof the eccentric position of the actuator with respect to the axis of the switch casing. It will thus be seen that by means of the switch and cam, a simple and eiiicient control device for the circuit to the lamp is provided, the same being adjustable to suit different conditions. When the lamp is swung laterally uponthe carrier member 16 as itsaxis, the

actuator 34 is moved awa-y from the cam 35, and t-he lamp being directed laterally with respect tothe vehicle, may be elevated or depressed without the light being affected during any portion of the arc of movement.

In a co-pending application SerialV No.

`413,997, filed October 1, 1920, is described and claimed a devi-ce for breaking the circuit to the lamp when the latter reaches a predesaid driver v two extremes of its normal arc of movement when the beam of light is projected straight ahead.

Having thus explained the nature of the invention and described an operative manner of constructing and using the same, although without attem ting to set forth all of the forms in whic it may be made, or all of the forms of its use, what is claimed is -1. A spot light lamp comprising .a lamp carrier rod, means supporting the same in a manner to be supported on axes in approximately the same plane but at right angles to each other means movable with said rod for temporarily breaking the circuit to the lamp during travell through a portion of yits arc of movement on one axis, and a lamp carried by'said' rod.` l

2. A spot-light lamp comprising a carrier member, means whereby the same isrotatably Supported, a lamp, a lamp carrier rod pivotally supported by -the carrier member lto move on an axis at right angles to the axis of rotation of said carrier member, and means mounted on saidlamp carrier rod Vfor temporarily breaking the circuittothe lamp during a portion of its travel between the extremes of its normal arc of movement with respect to the carrier member.l

3. vA spot-light lamp comprising a carrier member,v means whereby the same may berotatably supported, a lamp carrier ro'd hav` ing one end rotatably supported by the carrier member on an' axis at. rightangles" to the axis of rotation of the latter, a lamp supported by the other end of said rod and means mounted on said lamp carrier rod for temporarily breaking thecircuit to the lamp rod for breaking the circuit to the lamp during travel of the casing through a predetermined portion of its arc of movement with respect to said carrier member While the beam of light is projected forwardly.

5. A spot-light lamp of the character de.

other by the lamp carrier Lduring travel of the casing through a pre- -vice for the lamp having 'an scribed comprising a -support member, a carrier member rotatably mounted therein, `a lamp carrier rod having means whereby 1t 1s rotatably supported by one end of the carrier member on an axis at right angles to the axis of rotation of the lat-ter, a lamp supported by said carrier rod, a cam on said support member, and a circuit controlling device carried by the carrier rod and ositioned to engage said cam during the t avel of the casing through a predetermined portion of its arc of movement with res ect to the carrier member while the beam o light is projected forwardly, said circuit controlling device having means whereby its position may be adjusted with respect to said cam.

6. A spotlightlamp comprising a carrier member, rotatably supported, a lamp provided with a rod rotatably supported by one end of the Y carrier member on an axis at right angles to the axis of rotation of the latter, a supporting clamp secured to said rod, a circuit controlling device mounted in said clamp, and

means positioned to temporarily engage the.

circuit controlling device during travel of the lamp through a predetermined portion of its arcl of movement with respect to the carrier member while the beam of light is projected forwardly.

7 A spot light lamp of the character described comprising a support member, a carrier member rotatably mounted therein, a lamp pivotally supported by the carrier member on an axis at right angles to the axis of rotation of said carrier member, a rotatably adjustable circuit controlling deeccentrically placed actuator, and means positioned to engage said actuator during a portion of the pivotal movement of said lamp.

.,\ 8. A spot-light lamp comprising a carrier member, means whereby the same may be rotatably supported, a lamp casing having a rod rotatably supported by one end of the carrier member on an axis at right angles to the axis of rotation of the latter, a support bracket shaped at one end to engage said rod, a circuit controlling device mounted in the other end of said bracket, and means positioned to temporarily actuate the circuit controlling device during the travel of the casing through a predetermined arc of its movement with respect to the carrier member while the beam of light is projected forwardly.

9. A spot light lamp of the character described comprising a carrier member, means whereby the same is rotatably supported, a lamp provided with a support rod pivotally mounted in said carrier member on an axis at right angles to the axis of rotation of said carrier member, a support clamp engaging said support rod, a circuit control device mounted in said support clamp, and

means whereby the same may be means for actuating the circuit controlling device during a portion of the pivotal movement of said lamp.

10. A spot light lamp of the character described comprising a. carrier member, means whereby the same is rotatably supported, a lamp provided with a support rod pivotally mounted in said carrier member on an axis at right angles to the axis of rotation of said carrier member, a control device for the circuit to said lamp, separable clamp members engaging said support rod and having portions to receive said control device, a4 clamp bolt for maintaining said clamp members in clamping position, and means for .actuating said control device during a portion of the arc of movement of said lamp.

11. A spot-light lamp of the character described comprising a carrier member having a socket in one-end, means whereby the carriermember may lbe supported to rotate'on an axis at right angles to the axis of said socket, a lamv ably mounted) in said socket, a circuit control device mounted upon and movable with lsaid support arm, and means for temporarily actuating said circuit control device during travel ofthe lamp through a predetermined portion of its arc of movement with respect to the carrier member while the beam of light is projected forwardly.

. 12. A spot-light of the character described comprising a support member having a socket, a carrier member rotatably mounted in said socket, a lamp casing having means whereby it is rotatably supported by the carrier member on an axis at right angles to the axis of rotation of the latter, a circuit control device movable with the lamp casing, and means o-n the socket of said support member positioned to temporarily engage the circuit closing device during travel of the lamp casing through a predetermined portion of its arc of movement with respect to the carrier member while the beam of light is projected forwardly.

13. A spot-light lamp of the character described comprising a support member having a socket, a carrier member rotatably mounted in the socket, a lampv casing pivotally supported by the carrier member on an axis at right yangles to the axis of rotation of said carrier member, and a circuit control device movable with the lamp casing, saidy socket having a peripheral enlargement positioned to temporarily engage the circuit control device during the travel of the casing through a predetermined portion of its arc of movement with respect to the carrier member while the beam of light is projected forwardly.

14. A spot-light lamp of the character described comprising a support member having a socket provided with a cam, a carrier member rotatably mounted in said socket, a

having a supportjarm rotatlamp casing pivotally supported by the crof the lamp casing througha, predetermined `r rier member on an axls at rlght angles to the portion of its are of movement with respect axis of rotation of the latter, a circuit conto the carrier member while the beam of 10 trol device, means for adjustably securingV light is projected forwardly. 5 s'aid device to move with the lamp casing, In testimony whereof I have hereunto said device being normally positloned to set my hand.

temporarily engage said cam lduring travel HENRY H. MORETON. 

